[Xen-ia64-devel] RE: [PATCH] fixed serial console support

["Magenheimer, Dan (HP Labs Fort Collins)" <dan.magenheimer@xxxxxx>]

>    It really seems like we need some way to hide individual 
> devices.

That would be a good general solution.  But Xen is not
interested in most devices so hiding the console is
a good first step.

> would only feel comfortable hiding a UART using "running_on_xen" for
> guest domain if we could do it such that only the console UART is
> hidden.  

Agreed

> Maybe it could be done via an "ignore_uart=" boot parameter
> passed into dom0(?)  

This would be fine too.  We just need to be able to select
dynamically at runtime what CONFIG_SERIAL_8250=n does at
compile time.

> >  Also,
> > will this eliminate the need to have CONFIG_VT=y
> > on dom0 and CONFIG_VT=n on domU?
> 
>    I don't know, I never really understood the problem there.  Xen
> provides a ttyS (serial) console device to dom0  and a tty (vt) device
> to non-dom0 domains.  I would therefore have expected domU to need
> CONFIG_VT=y.  What was the problem with CONFIG_VT on domU before?
> Thanks,

Tristan or Matt, do you know?

Thanks,
Dan

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